I will be in the Calibre library adding books or just prettying up the entries for books already there when Calibre will suddenly move the focus from the last book I looked at to one four or five lines lower on the page. It's easy enough to put the focus back where I want it, but it's kind of irritating.
Any idea what might be going on here? It seems to happen when I back away from the program for a bit, so it might be caused by something interpreted as inactivity. But I'm talking about seconds of inactivity. I always download updates to the program whenever it prompts me to, so I can confidently say that I'm running the latest version.